וַיְכֻלּ֛וּ הַשָּׁמַ֥יִם וְהָאָ֖רֶץ וְכָל־צְבָאָֽם׃
천지와 만물이 다 이루니라
Mishnah Megillah
On Hanukkah they read the section of the princes (Numbers. On Purim, “And Amalek came” (Exodus 17:8). On Rosh Hodesh, “And on the first of your months” (Numbers 28:11). On Maamadot, the account of the creation (Genesis 1:1-2:3). On fast days, the blessings and curses (Leviticus 26:3 ff and Deuteronomy. They do not interrupt while reading the curses, but rather one reads them all. On Monday and Thursday and on Shabbat at minhah they read according to the regular order and this does not count as part of the reading [for the succeeding Shabbat]. As it says, “And Moshe declared to the children of Israel the appointed seasons of the Lord” (Leviticus 23:44) it is their mitzvah that each should be read in its appropriate time.
Mishnah Ta'anit
The men of the maamad fasted on four days of that week, from Monday to Thursday; they did not fast on Friday out of respect for Shabbat or on Sunday in order not to switch from the rest and delight [of Shabbat] to weariness and fasting and [thereby] die. On Sunday [they read], “In the beginning,” and, “Let there be a firmament;” On Monday, “Let there be a firmament,” and, “Let the waters be gathered together;” On Tuesday, “Let the waters be gathered together,” and, “Let there be lights;” On Wednesday, “Let there be lights,” and, “Let the waters swarm;” On Thursday, “Let the waters swarm,” and, “Let the earth bring forth;” On Friday, “Let the earth bring forth,” and, “And the heavens [and the earth] were completed.” For a long section two people read and for a short section one person. [This is how they would read] at Shacharit and Mussaf. And at minhah they assemble and read the section by heart, as they recite the Shema. On Friday at minhah they did not assemble out of respect for Shabbat.